Distribution of aromatic amines, phenols, chlorobenzenes, and naphthalenes in the surface sediment of the Dianchi Lake, China

Hu, Xinyi; Yang, Ting; Liu, Chen; Jin, Jun; Gao, Bingli; Wang, Xuejun; Qi, Ming; Wei, Baokai; Zhan, Yuyu; Tan, Chen; Wang, Hongtao; Liu, Yanting; Bai, Dong-Rui; Rao, Zhu; Zhan, Nan

doi:10.1007/s11783-020-1245-x

Cited by 10 publications

(3 citation statements)

References 25 publications

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“…Aquatic ecosystems provide important reservoirs for various persistent organic pollutants (Chen et al 2021 ; Wang et al 2021 ) and specifically, OPEs can exist both in the dissolved phase and sorbed to both suspended and surficial sediment (Zhong et al 2018 ). Sediment is considered as a ‘’source’’ and ‘’sink’’ of anthropogenic pollutants an aquatic ecosystem (Liang et al 2021 ; Hu et al 2020 ; Gbadamosi et al 2021b ). OPEs in coastal environment undergo complex transport processes and accumulated in the various aquatic flora and fauna; alternately, sediment can act as a secondary source of hydrophobic contaminants in aquatic environment (Zeng et al 2005 ; Liang et al 2021 ).…”

Section: Introductionmentioning

confidence: 99%

Occurrence, source apportionment, and ecological risk assessment of organophosphate esters in surface sediment from the Ogun and Osun Rivers, Southwest Nigeria

Gbadamosi,

Ogunneye,

Jegede

et al. 2023

Environ Sci Pollut Res

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Organophosphate esters (OPEs) are synthetic chemicals widely used as e.g., flame retardants and plasticisers in various consumer products. Due to the toxicity of OPEs in aquatic ecosystems, exposure of fauna and flora to these compounds is of potential concern. In this study, the concentrations, profiles, sources, and ecological risk of eight OPEs were investigated in the sediments from the two major rivers in southwest Nigeria. Concentrations of ∑OPEs in surface sediments were in the range 13.1 – 2110 ng/g dry weight (dw) (median: 378 ng/g dw) in the Ogun River and 24.7—589 ng/g dw (median: 174 ng/g dw) in the Osun River. These concentrations are broadly within the range of those reported in surface sediment in previous studies conducted in other locations around the world. Tris (2-butoxyethyl) phosphate (TBOEP) was the dominant OPE in the sediment samples with a median concentration of 337 and 126 ng/g dw for the Ogun and Osun Rivers respectively, while tri-n-butyl phosphate (TnBP) was not detected in any sample. Excluding TBOEP, the chlorinated organophosphate esters: tris(2-chloroethyl) phosphate (TCEP), tris(2-chloro-propyl) phosphate (TCIPP), and tris(1,3-dichloro-2-propyl) phosphate (TDCIPP) were the dominant OPEs in the Osun River, while the aryl-OPEs: triphenyl phosphate (TPHP), 2-ethylhexyl diphenyl phosphate (EHDPP), and tri-m-tolyl phosphate (TMTP) were dominant in the Ogun River. Under a median exposure scenario, moderate ecological risk was predicted from exposure to TCIPP in the Osun River. In contrast, under a high exposure scenario, concentrations of TDCIPP (risk quotient, RQ = 5.33—5.37) constituted a high ecological risk in both rivers, with moderate risks observed for TBOEP (RQ = 0.022—0.18) and TCIPP (RQ = 0.097 – 0.16). Therefore, the risk to aquatic organisms from concomitant exposure to mixtures of OPEs in freshwater ecosystems requires further investigation. Graphical Abstract

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Section: Introductionmentioning

confidence: 99%

Occurrence, source apportionment, and ecological risk assessment of organophosphate esters in surface sediment from the Ogun and Osun Rivers, Southwest Nigeria

Gbadamosi,

Ogunneye,

Jegede

et al. 2023

Environ Sci Pollut Res

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“…Due to Chinese rapid urbanization and industrialization, rivers are increasingly threatened by all kinds of pollutants (Zhao et al, 2018). Riverbed sediments as important sinks and sources for pollutants, the concentration of pollutants in it has a great impact on aquatic organisms and the water environment, even influence the entire ecosystem (Mi et al, 2019;Hu et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Distributions, Compositions, And Ecological Risk Assessment Of Typical Pollutants In Surface Sediment Of Xihe River, China

Sun

Yan

2022

Preprint

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Distributions and compositions of six phthalic acid esters (PAEs), eight phenol compounds and seven heavy metals in riverbed sediments of the Xihe River in Shenyang, China. The ecological risks of these typical pollutants were investigated and evaluated based on the risk quotient (RQ) and potential ecological risk index (PERI) methods. The concentrations of total ∑6PAEs, ∑8phenols and ∑7heavy metals in sediments varied from 92.83 to 293.66 μg/g dw, 8.87 to 83.73 μg/g dw and 0.46 to 419μg/g dw. The main pollutants in Xihe River sediments are DEHP, DIBP, phenol, P-methylphenol and Cd. More than half target PAEs and phenol compounds in sediment of the Xihe River exhibited medium or high ecological risk. Cd poses a very high ecological risk to the Xihe River Basin. It is imperative to take some effective measures to reduce the pollution of those contaminants.

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“…Due to Chinese rapid urbanization and industrialization, rivers are increasingly threatened by all kinds of pollutants (Zhao et al, 2018). Riverbed sediments as important sinks and sources for pollutants, the concentration of pollutants in it has a great impact on aquatic organisms and the water environment, even in uence the entire ecosystem (Mi et al, 2019;Hu et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Distributions, Compositions, and Ecological Risk Assessment of Typical Pollutants in Surface Sediment of Xihe River, China

Sun

Yan

2021

Preprint

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Distribution of aromatic amines, phenols, chlorobenzenes, and naphthalenes in the surface sediment of the Dianchi Lake, China

Cited by 10 publications

References 25 publications

Occurrence, source apportionment, and ecological risk assessment of organophosphate esters in surface sediment from the Ogun and Osun Rivers, Southwest Nigeria

Occurrence, source apportionment, and ecological risk assessment of organophosphate esters in surface sediment from the Ogun and Osun Rivers, Southwest Nigeria

Distributions, Compositions, And Ecological Risk Assessment Of Typical Pollutants In Surface Sediment Of Xihe River, China

Distributions, Compositions, and Ecological Risk Assessment of Typical Pollutants in Surface Sediment of Xihe River, China

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